Byproducts are secondary products that are generated during the manufacturing or processing of a primary product. For example, when producing corn syrup, the leftover material, such as corn husks, can be considered a byproduct. These byproducts can sometimes be used for other purposes, such as animal feed or compost. In many industries, byproducts can be valuable resources. For instance, in the oil refining process, byproducts like asphalt and petrochemicals are created alongside gasoline. Utilizing byproducts can help reduce waste and improve overall efficiency in production processes.